The trick is encoding this description in the compact syntax of regular expressions.
诀窍是使用规则表达式的简洁语法来编码这种描述。
Regular expressions are a much better means of performing this operation.
正则表达式是执行此操作的更好方法。
This is further explained in a later discussion of regular expressions.
在以后的规则表达式讨论中会进一步说明这个话题。
Regular expressions have their roots in computer language theory.
正则表达式在计算机语言理论中有很长的历史。
You can describe all of these formats with regular expressions.
所有这些格式都可以用正则表达式来描述。
In the context of regular expressions, patterns are text representations of sequences of characters.
在正则表达式的上下文中，模式是字符序列的文本表示法。
Explanation of using regular expressions, enumerations, unions, lists, and substitution groups.
使用正则表达式、枚举、联合、列表和置换组的说明。
Basic regular expressions are easy to write, but somewhat hard to read.
基础的正则表达式是非常容易书写的，但难以读懂。
Make sure you know your regular expressions, flow control, and default variable operations.
请确保您了解您的正则表达式、流控制和缺省变量操作。
Regular expressions are not new to SQL.
正则表达式对SQL 来说并非新事物。
But mask strings are not as flexible as regular expressions.
但是掩码字符串不如正则表达式那么灵活。
Allowing for this is not a problem with regular expressions.
实现这一点对于正则表达式而言并不是问题。
In its simplest form, regular expressions can match exact sequences of characters.
在其最简单的形式中，正则表达式可以匹配精确的字符序列。
These rewriting rules demonstrate the power of regular expressions.
这些重写规则表明了正则表达式的功能。
Regular expressions are complicated.
规则表达式很复杂。
You use regular expressions to implement the mask.
您要使用正则表达式来实现该蒙版。
TIP: All constraints and display patterns are set by regular expressions.
提示：所有约束和显示模式都由正则表达式来设置。
But now you know the ABCs of regular expressions.
但是您现在已了解了正则表达式的基本知识。
Of course, regular expressions are limited to strict string comparisons.
当然，正则表达式被限定为严格的字符串比较。
Our three languages also share support for regular expressions and pattern matching.
这三种语言都支持正则表达式和模式匹配。
At the command line, you'll find many ways to use regular expressions.
在命令行中，可以采用许多方法使用正则表达式。
This is similar to what happened with regular expressions some time ago.
这种情况和以前正则表达式的情况类似。
In fact, regular expressions provide a much more efficient and elegant solution.
实际上，正则表达式提供了更高效且更佳的解决方案。
Implement some regular expressions to properly validate form field entries.
实现一些正则表达式来适当地验证表单字段条目。
Regular expressions are built from characters and operators, augmented by metacharacters.
正则表达式通过元字符加强的字符和操作符构建。
Many books have been written just about regular expressions.
有大量书籍专门讲述正则表达式。
Again, it is trivial to parse those files with regular expressions.
用正则表达式解析这些文件同样没有什么大不了的。
For more detailed information on regular expressions, see Resources.
有关正则表达式更详细的信息，请参阅参考资料。
Many UNIX commands use regular expressions as arguments.
大量UNIX命令使用正则表达式作为参数。
Many UNIX commands use regular expressions as arguments.
大量UNIX命令使用正则表达式作为参数。
应用推荐